Improvement in wash-boards



italie-lr hm ll @ffice figures.

oHARLns LETTERMAN, or sYRAcUsE, NEW YORK, ssIeNoR .To JOHN w, rnnoor.

Letters Patent No. 112,820, dated March 21, 1871.

IMPROVEMENT IN WASH-BOARDS.

The Schedie referred to in these Letters Patent and making part vof the same.

Y To all whom it may concern:

Be it known that l, CHARLES LETTERMAN, of Syracuse, in the county of Onondaga, and State of New York, have vinvented an Improvement in Wash- Boards; and I do hereby' declare that the following is a full and exact description thereof, reference being had to the accompanying drawing making part of this specification- Figure l being a front view of a wash-board provided with my improvement.

Figure 2, a transverse vertical section of the same.

Like letters designate corresponding parts in both My invention consists in the employment, over the q nbbing-surface of a wash-board, or constituting the same, of a finely-perforated sleet of metal, in the manner and for thepurpose substantially as follows Let A represent a wash-board.

Upon the back a, thereof, whether iiuted or not, I place a sheet, B, of finely-perforated metal, such as sheet-zinc, the sheet metal also being tinted or corrugated in the usual way. Or this sheet of perforated metal 'may constitute the rubber of the wash-board without any back a. y

rihe perforatons b b of the sheet metal may be of Iauy'convenieut shape, round, as shown, or otherwise,

but they should be quite small, as indicated, though 11o particular size is prescribed.

No material is believed to be so practical as the perforated sheet metal. l The advantages o f this perforated metal surface are chiefly these:

First, the edges of the perforationsform effective air-exhausted spaces under the clothes, or'between them and the wash-board, so that the clothes are moved much more easily over the wash-board, this atmospheric pressure being a great hindrance-to the rubbing o f clothes ou an ordinary wash-board, both by the resistance of the pressure, and the ditiiculty ot" getting the clothes into actualeoutact with the washboard.

Fourth, the time 'required for the'rubbing is `consequently diminished, and there is thereby a saving of soap effected.

I disclaim a corrugated l sheet-metal wash-board having perforatious iu the bottom of its corrugations for the escape of water, and also disclaim a wire-cloth rubbing-surface, y

What I claim as my invention, and desire to secure by Letters Patent, is-

A uely-perforated sheet of metal, B, for the rubbing-surface of wash-boards, substantially as aud for the purpose herein specified. f

. Specification signed by me this 25th day of Jannary, 1871.

CHARLES LETTERMAN.

Witnesses: A

GEORGE B. WARNER, THOMAS D. J omas. 

